* Simple: His performance in the tournament was inconsistent, with some impressive wins followed by disappointing losses.
* Formal: The data collected from the two studies was inconsistent, making it difficult to draw reliable conclusions.
* Descriptive: The artist's style was inconsistent, ranging from realistic portraits to abstract landscapes.
* Negative: Her explanations were inconsistent, making it hard to trust anything she said.
* Comparative: The quality of the product is inconsistent compared to previous batches.
Remember to choose the sentence structure and tone that best suits the context you're writing in.